TGL system automatically resumes from s2idle when connecting to a docking station with a monitor
Bug #1902577 reported by
Alex Hung
This bug affects 1 person
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
HWE Next |
Fix Released
|
Undecided
|
Unassigned | ||
linux (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Invalid
|
Undecided
|
Unassigned | ||
linux-oem-5.10 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Alex Hung | ||
linux-oem-5.6 (Ubuntu) |
Invalid
|
Undecided
|
Unassigned | ||
Focal |
Fix Released
|
Undecided
|
Unassigned |
Bug Description
[Impact]
TGL systems wake up automatically from s2idle when connecting to a docking
station with a monitor. The wake-up events are generated when BIOS sets
ALL_MONITOR_OFF for power-saving on TGL systems.
[Fix]
A BIOS workaround is used to skip ALL_MONITOR_OFF with an _OSI string
"Linux-
[Test]
Verified on Dell's TigerLake platforms
[Regression Potential]
Low. This only works on platforms supporting "Linux-
No other platforms will be affected.
description: | updated |
description: | updated |
Changed in linux-oem-5.6 (Ubuntu): | |
status: | New → Invalid |
tags: | added: oem-priority originate-from-1909093 somerville |
tags: | added: originate-from-1911123 |
tags: | removed: originate-from-1909093 |
Changed in linux-oem-5.10 (Ubuntu): | |
status: | New → Invalid |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
assignee: | nobody → Alex Hung (alexhung) |
tags: | added: originate-from-1912134 |
Changed in linux-oem-5.10 (Ubuntu Focal): | |
status: | New → Fix Committed |
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This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1902577
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the Ubuntu Kernel Team.